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1. verb To leave or depart, especially suddenly or abruptly. We decided to peace out after they ran out of beer at the party. We peaced out of that lecture to go get some pizza. You want to come with us?
2. interjection, slang Goodbye; see you later; take it easy. A: "I think we're going to go to a movie instead." B: "No worries, peace out."
in. to depart; to leave. Let’s peace out. It’s too hot in here.
Used to express "goodbye."